Castletownbere weather in May 2025

Expect 14°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Castletownbere in May. Check more long-term weather averages for Castletownbere in May before you book your next holiday to Ireland in 2025/2026.

  • 14°C maximum daytime temperature in May in Castletownbere14
    14°C max day temperature
  • 6 hours of sunshine per day
  • 18 days with some rainfall in May in Castletownbere18
    18 days with some rainfall
  • 7°C minimum night-time temperature in May in Castletownbere7
    7°C min night temperature
  • 16 hours of daylight per day in May in Castletownbere16
    16 hours of daylight per day
  • No heat & humidity in May in Castletownbere0
    No heat & humidity
  • 93 mm monthly rainfall in May in Castletownbere93
    93 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Castletownbere5
    5 (Moderate) UV index
  • 11°C sea temperature in May in Castletownbere11
    11°C sea temperature

More about Castletownbere

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The May weather guide for Ireland (Castletownbere) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Ireland

How warm is it in Castletownbere in May?

Daytime temperatures usually reach 14°C in Castletownbere in May, falling to 7°C at night.

How sunny is it in Castletownbere in May?

There are normally 6 hours of bright sunshine each day in Castletownbere in May - that's 37% of daylight hours.

Is the sea cold around Castletownbere in May?

The average sea temperature around Castletownbere in May is 11°C.

Does it rain in Castletownbere in May?

There are usually 18 days with some rain in Castletownbere in May and the average monthly rainfall is 93mm.

Castletownbere May sunrise & sunset times

Browse the sunrise and sunset times for Castletownbere in May 2025. Select a month to view Castletownbere sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:11 20:04
Friday, 16th May 2025 04:45 20:28
Saturday, 31st May 2025 04:28 20:47

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